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Experiments in Fluids
Erschienen in: Experiments in Fluids 1/2004

01.07.2004 | Original

Analysis of the wake–mixing-layer interaction using multiple plane PIV and 3D classical POD

verfasst von: C. Braud, D. Heitz, P. Braud, G. Arroyo, J. Delville

Erschienen in: Experiments in Fluids | Ausgabe 1/2004

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Abstract

The strong interaction between turbulent structures arising from a plane mixing layer impinging on a circular cylinder is studied. This complex flow has been investigated by a set-up called “dual-plane” PIV that uses two 2D PIV (two-dimensional particle image velocimetry) planes acquired simultaneously. This approach allowed us to apply a 3D-POD (three-dimensional proper orthogonal decomposition) treatment. The first POD modes show the main footprint of the flow configuration, which comprises oblique structures associated with the action of the mixing layer on the near wake. The present study suggests, by analogy, that this phenomenon behaves like the dislocation observed in uniform wake flows.
Vorheriger Artikel The pinch-off process in a starting buoyant plume
Nächster Artikel Optically sliced micro-PIV using confocal laser scanning microscopy (CLSM)

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Fußnoten
1
St=(fδ w )/U c and f=U c /λ (Taylor hypothesis)
 
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Metadaten
Titel
Analysis of the wake–mixing-layer interaction using multiple plane PIV and 3D classical POD
verfasst von
C. Braud
D. Heitz
P. Braud
G. Arroyo
J. Delville
Publikationsdatum
01.07.2004
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 1/2004
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-004-0789-z

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